Question

Few statements are given regarding nodes in the orbitals. Mark the statement which is not correct.

A. In case of $${p_z}$$  - orbital, $$xy$$  plane is a nodal plane.
B. $$ns$$ - orbital has $$\left( {n + 1} \right)$$  nodes.  
C. The number of angular nodes is given by $$l.$$
D. The total number of nodes is given by $$\left( {n - 1} \right)$$  i.e. sum of $$l$$ angular nodes and $$\left( {n - l - 1} \right)$$   radial nodes.
Answer :   $$ns$$ - orbital has $$\left( {n + 1} \right)$$  nodes.
Solution :
$$ns$$  orbital has $$\left( {n - 1} \right)$$  nodes.

Releted MCQ Question on
Physical Chemistry >> Atomic Structure

Releted Question 1

The number of neutrons in dipositive zinc ion with mass number 70 is

A. 34
B. 36
C. 38
D. 40
Releted Question 2

Rutherford’s experiment on scattering of $$a$$ -particles showed for the first time that the atom has

A. electrons
B. protons
C. nucleus
D. neutrons
Releted Question 3

Any $$p-$$orbital can accommodate upto

A. four electrons
B. six electrons
C. two electrons with parallel spins
D. two electrons with opposite spins
Releted Question 4

The principal quantum number of an atom is related to the

A. size of the orbital
B. spin angular momentum
C. orbital angular momentum
D. orientation of the orbital in space

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Atomic Structure


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